From my attempts some time ago, I seem to remember it didn't do both. I could could never get mine to work consistently against humans, so I quit using it. Perhaps I'll try again.
playing against the computer, DGT board not reconised

Use the Chrome/Edge extension chess.connect. Search the forum for "chessconnect". Lots of discussion on this extension. I've tried it and was able to play the bots with the e-Board.
Chessconnect: a free chrome extension for electronic chessboards - Chess Forums - Chess.com
Hi, how do I get the DGT board working when playing against the computer on chess.com. Works when playing a human opponent.